diff options
| author | Franz Schnyder <franz.schnyder@toradex.com> | 2026-03-23 11:11:11 +0100 |
|---|---|---|
| committer | Franz Schnyder <franz.schnyder@toradex.com> | 2026-03-26 16:16:22 +0100 |
| commit | 38dbd4f54c141ca8475d96be67be651c544f2589 (patch) | |
| tree | 39eb95fca542c12a1c5882f1fad0fed5f0aa3168 | |
| parent | 2c306d4831e75163b11d01ef71d9f6421afa653c (diff) | |
arm64: dts: freescale: imx95-toradex-smarc: Use gpio-hog for WIFI_UART_ENtoradex_6.6-2.2.x-imx
On the Toradex SMARC iMX95, the WiFi UART signals are shared with the
JTAG. The WIFI_UART_EN signal is used to select between these
two functions. A GPIO hog is used to select the UART function by
default. The hog is safe as it is already configured in the same way
by the boot firmware before Linux driver probing begins.
Configure WIFI_UART_EN as a gpio-hog driven high.
Upstream-Status: Submitted [https://lore.kernel.org/all/20260326143711.143462-1-fra.schnyder@gmail.com/]
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi index 09f41ed9f87e..e96cdb524e30 100644 --- a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi +++ b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi @@ -492,6 +492,13 @@ "", "", "SMARC_SDIO_WP"; + + wifi-uart-en-hog { + gpio-hog; + gpios = <12 GPIO_ACTIVE_HIGH>; + line-name = "WIFI_UART_EN"; + output-high; + }; }; embedded-controller@28 { |